target-xtensa: add regression testsuite

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 206 insertions, 0 deletions

diff --git a/tests/xtensa/test_shift.S b/tests/xtensa/test_shift.S
new file mode 100644
index 0000000000..a8e43645b7
--- /dev/null
+++ b/tests/xtensa/test_shift.S
@@ -0,0 +1,206 @@
+.include "macros.inc"
+
+test_suite shift
+
+.macro test_shift prefix, dst, src, v, imm
+    \prefix\()_set \dst, \src, \v, \imm
+    \prefix\()_ver \dst, \v, \imm
+.endm
+
+.macro test_shift_sd prefix, v, imm
+    test_shift \prefix, a3, a2, \v, \imm
+    test_shift \prefix, a2, a2, \v, \imm
+.endm
+
+.macro tests_imm_shift prefix, v
+    test_shift_sd \prefix, \v, 1
+    test_shift_sd \prefix, \v, 2
+    test_shift_sd \prefix, \v, 7
+    test_shift_sd \prefix, \v, 8
+    test_shift_sd \prefix, \v, 15
+    test_shift_sd \prefix, \v, 16
+    test_shift_sd \prefix, \v, 31
+.endm
+
+.macro tests_shift prefix, v
+    test_shift_sd \prefix, \v, 0
+    tests_imm_shift \prefix, \v
+    test_shift_sd \prefix, \v, 32
+.endm
+
+
+.macro slli_set dst, src, v, imm
+    movi    \src, \v
+    slli    \dst, \src, \imm
+.endm
+
+.macro slli_ver dst, v, imm
+    mov     a2, \dst
+    movi    a3, ((\v) << (\imm)) & 0xffffffff
+    assert  eq, a2, a3
+.endm
+
+test slli
+    tests_imm_shift slli, 0xa3c51249
+test_end
+
+
+.macro srai_set dst, src, v, imm
+    movi    \src, \v
+    srai    \dst, \src, \imm
+.endm
+
+.macro srai_ver dst, v, imm
+    mov     a2, \dst
+    .if (\imm)
+    movi    a3, (((\v) >> (\imm)) & 0xffffffff) | \
+                ~((((\v) & 0x80000000) >> ((\imm) - 1)) - 1)
+    .else
+    movi    a3, \v
+    .endif
+    assert  eq, a2, a3
+.endm
+
+test srai
+    tests_imm_shift srai, 0x49a3c512
+    tests_imm_shift srai, 0xa3c51249
+test_end
+
+
+.macro srli_set dst, src, v, imm
+    movi    \src, \v
+    srli    \dst, \src, \imm
+.endm
+
+.macro srli_ver dst, v, imm
+    mov     a2, \dst
+    movi    a3, (((\v) >> (\imm)) & 0xffffffff)
+    assert  eq, a2, a3
+.endm
+
+test srli
+    tests_imm_shift srli, 0x49a3c512
+    tests_imm_shift srli, 0xa3c51249
+test_end
+
+
+.macro sll_set dst, src, v, imm
+    movi    a2, \imm
+    ssl     a2
+    movi    \src, \v
+    sll     \dst, \src
+.endm
+
+.macro sll_sar_set dst, src, v, imm
+    movi    a2, 32 - \imm
+    wsr     a2, sar
+    movi    \src, \v
+    sll     \dst, \src
+.endm
+
+.macro sll_ver dst, v, imm
+    slli_ver \dst, \v, (\imm) & 0x1f
+.endm
+
+.macro sll_sar_ver dst, v, imm
+    slli_ver \dst, \v, \imm
+.endm
+
+test sll
+    tests_shift sll, 0xa3c51249
+    tests_shift sll_sar, 0xa3c51249
+test_end
+
+
+.macro srl_set dst, src, v, imm
+    movi    a2, \imm
+    ssr     a2
+    movi    \src, \v
+    srl     \dst, \src
+.endm
+
+.macro srl_sar_set dst, src, v, imm
+    movi    a2, \imm
+    wsr     a2, sar
+    movi    \src, \v
+    srl     \dst, \src
+.endm
+
+.macro srl_ver dst, v, imm
+    srli_ver \dst, \v, (\imm) & 0x1f
+.endm
+
+.macro srl_sar_ver dst, v, imm
+    srli_ver \dst, \v, \imm
+.endm
+
+test srl
+    tests_shift srl, 0xa3c51249
+    tests_shift srl_sar, 0xa3c51249
+    tests_shift srl, 0x49a3c512
+    tests_shift srl_sar, 0x49a3c512
+test_end
+
+
+.macro sra_set dst, src, v, imm
+    movi    a2, \imm
+    ssr     a2
+    movi    \src, \v
+    sra     \dst, \src
+.endm
+
+.macro sra_sar_set dst, src, v, imm
+    movi    a2, \imm
+    wsr     a2, sar
+    movi    \src, \v
+    sra     \dst, \src
+.endm
+
+.macro sra_ver dst, v, imm
+    srai_ver \dst, \v, (\imm) & 0x1f
+.endm
+
+.macro sra_sar_ver dst, v, imm
+    srai_ver \dst, \v, \imm
+.endm
+
+test sra
+    tests_shift sra, 0xa3c51249
+    tests_shift sra_sar, 0xa3c51249
+    tests_shift sra, 0x49a3c512
+    tests_shift sra_sar, 0x49a3c512
+test_end
+
+
+.macro src_set dst, src, v, imm
+    movi    a2, \imm
+    ssr     a2
+    movi    \src, (\v) & 0xffffffff
+    movi    a4, (\v) >> 32
+    src     \dst, a4, \src
+.endm
+
+.macro src_sar_set dst, src, v, imm
+    movi    a2, \imm
+    wsr     a2, sar
+    movi    \src, (\v) & 0xffffffff
+    movi    a4, (\v) >> 32
+    src     \dst, a4, \src
+.endm
+
+.macro src_ver dst, v, imm
+    src_sar_ver \dst, \v, (\imm) & 0x1f
+.endm
+
+.macro src_sar_ver dst, v, imm
+    mov     a2, \dst
+    movi    a3, ((\v) >> (\imm)) & 0xffffffff
+    assert  eq, a2, a3
+.endm
+
+test src
+    tests_shift src, 0xa3c51249215c3a94
+    tests_shift src_sar, 0xa3c51249215c3a94
+test_end
+
+test_suite_end